Escapement of timekeepers



UNITED STATES PATENT OFFCE.

JOS. JEUNET, OF MEADVILLE, PENNSYLVANIA.

ESCAPEMENT 0F TIMEKEEPERS.

Specification of Letters Patent No. 21,425, dated September '7, 1858.

To all w/iom t may concern.'

Be it knoWn that I, JOSEPH JEUNET, of

llleadville, in the county of CraWford and.

State of Pennsylvania, have invented a new and useful Improvement in Escapements of iVatches; and l do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying draWings and the letters of reference marked thereon.

Figure l represents my escapement adusted in Working order.

B, is the escapement Wheel With sixty teeth on its periphery.

A., is a pinion connected and gearing into other Wheels not represented in the drawing the same being exactly similar to a common detached lever Watch and by Which the escapement Wheel B, is moved.

P, G, is the fork77 and S S the lever also constructed like a detached lever Watch. This lever and fork are moved by a collet, F, aud jeWel pin O on the balance Wheel C.

H H is the hair Spring7 one end of Which is attached to the collet, F, and the other end to a post, lV.

So far the construction is similar to the common detached lever Watch With the exception that the escapement Wheel B, has sixty teeth instead of thirty as in the ordinary Watch.

rl`he balance Wheel, C, has cogs on its periphery; this Wheel gears into a pininon, E, on the shaft of the 2nd balance, D. Now the lst balance, C, is moved by the fork P and jeWel pin O on the collet F in the same manner that the balance Wheel of a common detached lever Watch is moved, and this balance, C, causes the balance, D, to revolve alternately a number of times in one direction and then a number of times in the other, at every movement of the fork, G, l), and thereby makes a more steady motion and makes the Watch less liable to be a tllectcd by sudden jars and joltsf7 and also the Winding the Watch does not so much disturb its usual motion, and thereby produces a much smoother motion and more perfect time piece.

That l claim as my invention and desire to secure by Letters Patent is- The lst balance Wheel, C, constructed With cogs on its periphery gearing in the pinion,

E, and the 2nd balance Wheel D moved thereby in the manner described, the Whole being arranged in the manner and for the purposes set forth.

A, B. RICHMOND, J H. LEWIS. 

